In the United States it was just 43 years ago when interracial marriage was made fully legal in all 50 states.
Although in early America, whites and Native Americans, Native Americans and blacks and blacks and whites openly procreated with one another, the introduction of institutionalized slavery changed the nature of such relationships entirely.
Besides the Mann Act, other laws were in place through the centuries to discourage and prevent interracial dating and marriage.
Miscegenation, so called since 1863, was a word given to the act of interracial couples to discredit the Abolitionists movement.
In English, an "interracial marriage" refers to the institution of marriage, including childless marriages.
Formerly, the term was used more widely as a euphemism for interracial sexual unions that produced mixed-race offspring out of wedlock, since both miscegenation and illegitimacy were historically taboo in Western culture, particularly in the context of Victorian morality.
the older US euphemism children of the plantation).